web client: progress indicator needed in patron search

[Kathy Lussier]

The patron search could use a progress indicator letting staff know the search is still in progress.

If staff is working from an existing list patrons and conducts a new search, the first thing the interface does is clear the existing list and replace it with a "No Items to Display" message. If the search takes a long time, it's hard to tell if the search yielded zero results or if the search is still working.

Alternatively, we could choose not display the "No Items to Display" message until the search is complete, but I think progress indicators are a good UI element to add for any search or for screens that take a long time to load.

[Bill Erickson (berick)]

Patron search progress bar pushed:

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1565009-webstaff-patron-search-progress

From the commit:

Displays a progress bar while waiting for results from a patron search in the browser client. Bar only displays when a server-side search is required. (It's not displayed for cached searches, etc.). Results grid is hidden while the progress bar is visible and vice versa.

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Note that no attempt is made to indicate actual progress, since the grid begins rendering with the first user retrieved, only that a search is in progress.

[Jeanette Lundgren (jlundgren)]

I plan to test this on Bug Squashing Day

[Jeanette Lundgren (jlundgren)]

This looks great! Thanks Bill and Kathy.

I have tested this code and consent to signing off on it with my name, Jeanette Lundgren, and my email address <email address hidden>.

[Kathy Lussier (klussier)]

Thank you Bill and Jeanette! Signed off and merged to master, 2.11 and 2.10.